CN115254278A

CN115254278A - Combined roller press of cement grinding station

Info

Publication number: CN115254278A
Application number: CN202211028449.XA
Authority: CN
Inventors: 董树良; 姚其根; 吴根弟; 付华根
Original assignee: Pinghu South Cement Co ltd
Current assignee: Pinghu South Cement Co ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2022-11-01
Anticipated expiration: 2042-08-25
Also published as: CN115254278B

Abstract

The invention relates to the technical field of cement grinding, and discloses a combined roller press of a cement grinding station, wherein a movable hopper is arranged above a machine body, a hydraulic cylinder and a hydraulic device are simultaneously controlled by a hydraulic system, when a movable roller is driven by hydraulic pressure to move, a gap between a fixed roller and the movable roller is enlarged, meanwhile, a hydraulic rod is driven by the hydraulic device to drive the hopper to move, the center of the bottom of the hopper is kept on a vertical plane at the same time with the center of the gap between a pressing roller after the movement is finished, a rotating wheel and a corrugated sleeve are arranged in the hopper, the rotating wheel is driven by a motor to rotate, the same amount of materials on the same level are ensured during blanking, the materials are more uniform when falling between the pair rollers for rolling, resistance sliding sheets are arranged in the fixed roller and the movable roller and matched with resistance strips, and the sliding of the resistance sheets is used for adjusting the rotation condition of the pressing roller and adjusting the rotating speed of the scraper and the rotating wheel.

Description

Combined roller press of cement grinding station

Technical Field

The invention relates to the technical field of cement grinding, in particular to a combined roller press of a cement grinding station.

Background

The cement grinding is the last process of cement manufacture, the grinding equipment adopted in the cement grinding station is a roller press which is designed according to the grinding principle of a material bed, the roller press consists of two extrusion rollers which synchronously rotate in opposite directions, one is a fixed roller, the other is a movable roller, materials are fed from the upper parts of the two rollers and are continuously brought into the space between the rollers by the extrusion rollers, and the materials are changed into compact cakes to be discharged from the lower part of the machine after being subjected to the action of high pressure of 100-150MPa, although the existing roller press is widely applied and has various types, the existing roller press has certain defects:

when the roller press is used, the movable roller needs to be adjusted according to different specific grinding conditions, but the whole structure of the existing roller press is not fixed, the adjustment is that the movable roller is driven by an internal hydraulic system to move so as to adjust the size of a gap between the movable roller and the fixed roller, but the existing adjustment is only limited on the movable roller, so that the center position of the gap between the fixed roller and the movable roller after adjustment does not correspond to the center of a discharging hopper, cement materials do not fall in the middle position of the fixed roller and the movable roller when discharging is subsequently carried out, the left and right deviation of the material accumulation condition between the two rollers is easily caused, uneven rolling is caused, and the quality of a pressed material cake is poor;

meanwhile, when the material is rolled, the material in the hopper is piled up and falls between the two compression rollers from the bottom material port, but the material in the existing hopper is discharged in the middle, so the material falls between the compression rollers and is mainly concentrated at the middle position, so the middle position is mainly worked when the material is rolled, the service life of the compression rollers is not uniform, the middle part is easy to damage quickly due to excessive loss, the whole service life of the compression rollers is shortened, and the production is not facilitated;

moreover, because certain loss and the adhesion to the cake can appear in the surface of compression roller when carrying out the roll-in, just lead to the follow-up roll-in effect of compression roller not good, if it is all big to the friction loss of the two to face the compression roller always with the scraper, also can reduce the effect of scraping of scraper very fast to if the cake of compression roller surface adhesion too much also can lead to the material that follow-up fell to pile up and become many, thereby it influences the collection of cake to follow both sides landing to the discharge gate easily.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the combined roller press of the cement grinding station, which has the advantages of uniform rolling and good quality and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a cement grinds station and unites roll squeezer, includes organism and hopper, and the hopper is located the organism top, the feed inlet has been seted up at the top of organism, the bottom of hopper stretches into in the feed inlet, the discharge gate has been seted up to the bottom of organism, the inside left end fixed mounting of organism has the fixed roll, the inside right side movable mounting who is located the fixed roll of organism has the movable roll, the inside right-hand member lateral wall fixed mounting of organism has the pneumatic cylinder, the output of pneumatic cylinder and the right side fixed connection of movable roll, the organism back mounted has the first motor of drive fixed roll and movable roll, organism right side inner wall fixed mounting has the control box, the scraper is installed to organism left side inner wall and scraper right side wall symmetry, organism right-hand member top fixed mounting has hydraulic means, hydraulic stem has been cup jointed in hydraulic means's left side activity, hydraulic stem and hopper right side fixed connection, the organism top surface is located the front and the symmetrical fixed mounting in back of hopper and has spacing.

Preferably, the bottom of hopper has been seted up down the silo, hopper inside is located silo top position movable mounting has the runner, the back fixed mounting of hopper has output and runner fixed connection's second motor, hopper inner chamber middle part fixed mounting has two dead levers, the outside cover of dead lever is equipped with the ripple cover, set up the air cavity in the inner wall at the hopper back, the bottom activity of air cavity has cup jointed the slider, the top fixed mounting of slider has the sleeve, the roof fixed mounting of air cavity has the loop bar, telescopic top activity cup joints inside the loop bar.

Preferably, a cam is fixedly mounted on the outer ring of the output shaft of the second motor, the cam is located right below the sliding block, and the sleeve rod and the sleeve are in sliding sealing sleeve connection through a piston.

Preferably, a set of spout has all been seted up at the middle part of fixed roll and activity roller, the inside slip of spout has cup jointed the resistance gleitbretter, the resistance gleitbretter is close to the one end and the spout inner wall fixedly connected with reset spring in activity roller axle center, the inner wall of spout be equipped with the resistance strip and with the sliding fit of resistance gleitbretter.

Preferably, the hydraulic rod and the hydraulic cylinder are driven by the hydraulic system at the same time, and the moving distance of the hydraulic rod is smaller than that of the hydraulic cylinder.

Preferably, the feeding trough is formed in a bent shape, grooves are uniformly formed in the outer surface of the rotating wheel, and the size of the opening of each groove is larger than that of the top opening of the feeding trough.

The invention has the following beneficial effects:

1. hopper through setting up the movable is located the top of organism, through hydraulic system simultaneous control pneumatic cylinder and hydraulic means, compare in prior art, can lead to the clearance grow of fixed roll and movable roll when removing through hydraulic drive movable roll, meanwhile hydraulic means drive hydraulic stem drives the hopper and removes, guarantee the center of hopper bottom after the removal finishes, still keep with the clearance center between fixed roll and the movable roll on vertical plane simultaneously, thereby make the cement material that the hopper fell can be abundant by the roll-in, also guaranteed to adjust the material cake quality that the back roll-in came out unanimous with before, can also avoid the material because pile up the landing that the sideslip caused simultaneously, thereby influence the conveyer belt of bottom and collect the material cake.

2. Through being provided with runner and ripple cover inside the hopper, and rotate through second motor drive runner, compare in prior art, utilize the rotation of runner to realize the unloading, the recess of its surface can fully be filled, it is as many as to be in the material on same level when the unloading has been guaranteed, more even when falling between fixed roller and the activity roller like this, make the even roll-in of material that passes through between fixed roller and the activity roller clearance, guaranteed that the roller can be even receive the exogenic action, the condition of middle part loss too fast has been avoided, and service life is prolonged.

3. Through all being provided with the resistance gleitbretter and having the resistance strip in fixed roller and movable roll inside, compare in prior art, utilize fixed roller and movable roll to drive the resistance gleitbretter when rotating and be centrifugal motion, the resistance gleitbretter can slide adjusting resistance and reflect the rotation condition of compression roller, and the volume according to compression roller surface adhesion cake can lead to the roll-in volume to diminish, thereby form at fixed roller and movable roll top and pile up too much material, thereby make the vibrations power influence that the resistance gleitbretter received diminish, adjust the scraper and clear up the compression roller surface among the feedback control system, thereby make the roll-in effect of fixed roller and movable roll resume, guarantee the effect and the quality of roll-in.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a top view of the overall structure of the present invention;

FIG. 3 is an overall longitudinal half-sectional view of the structure of the present invention;

FIG. 4 is an overall transverse half-sectional view of the inventive structure;

FIG. 5 is a schematic view of a hopper according to the present invention;

FIG. 6 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 2;

fig. 9 is an enlarged view of fig. 3 at D.

In the figure: 1. a body; 101. a feed inlet; 102. a discharge port; 2. a hopper; 201. a discharging groove; 202. an air cavity; 3. a fixed roller; 4. a movable roller; 401. a chute; 5. a hydraulic cylinder; 6. a first motor; 7. a control box; 8. a scraper; 9. a hydraulic device; 10. a hydraulic lever; 11. a limiting strip; 12. a rotating wheel; 13. fixing the rod; 14. a corrugated sleeve; 15. a second motor; 16. a slider; 17. a cam; 18. a loop bar; 19. a sleeve; 20. a resistance slip sheet; 21. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Example one

Referring to fig. 1-4 and 6-8, a combined roller press for a cement grinding station comprises a machine body 1 and a hopper 2, wherein the hopper 2 is positioned above the machine body 1, the top of the machine body 1 is provided with a feed inlet 101, the bottom of the hopper 2 extends into the feed inlet 101, the length of the feed inlet 101 is the same as the length of a fixed roller 3 and a movable roller 4, so that cement materials falling from the hopper 2 can be fully applied between the fixed roller 3 and the movable roller 4, the bottom of the machine body 1 is provided with a discharge outlet 102, the fixed roller 3 is fixedly arranged at the left end inside the machine body 1, the movable roller 4 is movably arranged at the right end inside the machine body 1, a hydraulic cylinder 5 is fixedly arranged at the right end side wall inside the machine body 1, the output end of the hydraulic cylinder 5 is fixedly connected with the right side of the movable roller 4, the hydraulic cylinder 5 can drive the movable roller 4 to slide and adjust under the driving of a hydraulic system, thereby adjusting the gap between the fixed roller 3 and the movable roller 4, and further achieving the rolling with different requirements, the back of the machine body 1 is provided with a first motor 6 for driving the fixed roller 3 and the movable roller 4, the inner wall of the right side of the machine body 1 is fixedly provided with a control box 7, the inner wall of the left side of the machine body 1 and the right side wall of the scraper 8 are symmetrically provided with scrapers 8, the top of the right end of the machine body 1 is fixedly provided with a hydraulic device 9, the left side of the hydraulic device 9 is movably sleeved with a hydraulic rod 10, the hydraulic rod 10 is fixedly connected with the right side of the hopper 2, the top surface of the machine body 1 is positioned at the front side and the back side of the hopper 2 and symmetrically provided with a limit strip 11, the hydraulic rod 10 and the hydraulic cylinder 5 are simultaneously driven by a hydraulic system, the moving distance when the hydraulic rod 10 is driven by the hydraulic system is smaller than the moving distance of the hydraulic cylinder 5, when the hydraulic system drives the hydraulic cylinder 5 to drive the movable roller 4 to move and adjust, the hydraulic device 9 simultaneously drives the hydraulic rod 10 to drive the hopper 2 to move, and after the hydraulic cylinder 5 is moved, the hydraulic rod 10 just drives the hopper 2 to move to the position that the bottom center and the center of the gap between the fixed roller 3 and the movable roller 4 are positioned on the same vertical plane, so that the blanking of the bottom center of the follow-up hopper 2 is just fallen on the middle of the fixed roller 3 and the movable roller 4, and the rolling uniformity is ensured.

Example two

Referring to fig. 2-8, a discharging chute 201 is disposed at the bottom of a hopper 2, a rotating wheel 12 is movably mounted at the top of the discharging chute 201 inside the hopper 2, a second motor 15 having an output end fixedly connected with the rotating wheel 12 is fixedly mounted at the back of the hopper 2, two fixing rods 13 are fixedly mounted at the middle of an inner cavity of the hopper 2, a corrugated sleeve 14 is sleeved outside the fixing rods 13, an air cavity 202 is disposed in the inner wall at the back of the hopper 2, a slider 16 is movably sleeved at the bottom of the air cavity 202, a sleeve 19 is fixedly mounted at the top of the slider 16, a sleeve rod 18 is fixedly mounted at the top wall of the air cavity 202, the top of the sleeve 19 is movably sleeved inside the sleeve rod 18, a cam 17 is fixedly mounted on the outer ring of an output shaft of the second motor 15, the cam 17 is located under the slider 16, the sleeve rod 18 and the sleeve 19 are slidably and sealingly sleeved by a piston, the rotating wheel 12 is driven by the second motor 15 to rotate so as to realize discharging, meanwhile, the cam 17 is driven to rotate, the cam 17 is in a cam shape, so that the sliding block 16 is intermittently pushed upwards, the gas in the air cavity 202 is pressed into the corrugated sleeve 14, the corrugated sleeve 14 is intermittently expanded and contracted, the material inside the hopper 2 is tamped and loosened in an intermittent manner, the blocking condition during blanking is avoided, meanwhile, the sleeve rod 18 and the sleeve 19 are movably and hermetically sleeved, the gas inside the sleeve 19 can be compressed when the sliding block 16 moves upwards, the sliding block 16 can move downwards to reset under the action of the air pressure inside the sleeve 19 after losing the pressing of the cam 17, the blanking groove 201 is formed in a bent shape, grooves are uniformly formed in the outer surface of the rotating wheel 12, the opening size of each groove is larger than the top opening of the blanking groove 201, and therefore, when the rotating wheel 12 rotates, cement materials in the inner cavity of the hopper 2 can be continuously supplemented into the grooves, then along with runner 12's rotation will be filled with the recess of material and rotate the below position, fall into feed inlet 101 promptly, because the open-top of feed inlet 101 is less than the recess, consequently the cement material falls into feed inlet 101 and can be blocked by its inner wall of buckling and collect the intermediate position of hopper 2 bottom, then fall again and just can guarantee the homogeneity of follow-up roll-in between fixed roll 3 and the movable roll 4 to the quality of material cake has been guaranteed.

EXAMPLE III

Please refer to fig. 3, fig. 6, fig. 9, a set of sliding slots 401 have been opened at the middle parts of the fixed roller 3 and the movable roller 4, a resistance slip sheet 20 is sleeved in the sliding slot 401, one end of the resistance slip sheet 20 near the axis of the movable roller 4 and a return spring 21 fixedly connected to the inner wall of the sliding slot 401, the inner wall of the sliding slot 401 is provided with a resistance strip and is in sliding fit with the resistance slip sheet 20, and is in electrical contact with the resistance strip through the resistance slip sheet 20, so that the resistance slip sheet 20 inside the sliding slot 401 is swung outwards under the action of centrifugal force when the fixed roller 3 and the movable roller 4 rotate, and therefore, the resistance change is also unstable, and in combination with the gravity action of the resistance slip sheet 20, the resistance change caused by the two resistance slip sheets 20 when the fixed roller 3 and the movable roller 4 rotate to be in the horizontal position detects the rolling condition of the fixed roller 3 and the movable roller 4: when the surface of compression roller is adhered with more material cake, lead to subsequent roll-in volume decline will pile up more cement material at the top of fixed roll 3 and activity roller 4, the gravity grow that fixed roll 3 and activity roller 4 received this moment, consequently stability when rotating is higher, consequently resistance gleitbretter 20 is more stable, lead to the resistance change condition different with before, just feed back to control system in, the scraper 8 through regulation and control both sides stretches out and clears up fixed roll 3 and activity roller 4 surface, suitably adjust the rotational speed of runner 12 simultaneously and reduce unloading speed, wait to resume the rotational speed of runner 12 again when the roll-in condition before.

Firstly adding cement materials into a hopper 2, then starting equipment to work, driving a rotating wheel 12 to rotate by a second motor 15, supplementing the cement materials into a groove of the rotating wheel 12 and then rotating, when the cement materials are rotated to the lower part, falling into a blanking groove 201 and then falling into a feeding hole 101 from the bottom, driving a cam 17 to rotate continuously in the process that the rotating wheel 12 is driven by the second motor 15 to rotate, enabling the cam 17 to upwards abut against a sliding block 16, enabling the sliding block 16 to move upwards to drive a sleeve rod 18 to contract towards the inside of a sleeve 19 and compress gas, meanwhile extruding the gas in an air cavity 202 into a corrugated sleeve 14 to expand, playing a role of tamping the cement materials in the hopper 2, driving a fixed roller 3 and a movable roller 4 to synchronously rotate towards the middle along with the rotation of the cam 17, driving the sliding block 16 to reset under the action of air pressure in the sleeve 19 so as to form an intermittent expansion corrugated sleeve 14 to avoid the situation that the blanking blockage occurs in the hopper 2, and enabling the cement materials to fall into the bottom of the conveying belt from a discharging hole 102 through the feeding hole 101;

meanwhile, the fixed roller 3 and the movable roller 4 can drive the resistance slip sheet 20 in the chute 401 to centrifugally swing outwards in the rotating process, so that the resistance slip sheet 20 slides along the chute 401 and the resistance of the resistance strip changes, the resistance is just driven to form a change period by the fixed roller 3 and the movable roller 4 rotating for one circle, and then the resistance slip sheet is directly fed back to the control system under the influence of vibration of the fixed roller 3 and the movable roller 4 under a certain rotating speed, when more material cakes are adhered to the surface of the compression roller, more cement materials can be accumulated on the tops of the fixed roller 3 and the movable roller 4 due to subsequent rolling reduction, at the moment, the gravity on the tops of the fixed roller 3 and the movable roller 4 becomes larger, so that the stability caused by the reduction of the vibration during rotation is higher, the resistance slip sheet 20 is more stable, the condition different from the previous resistance change condition is fed back to the control system, the scrapers 8 on the two sides are extended out to clean the surfaces of the fixed roller 3 and the movable roller 4, the rotating speed of the rotating wheel 12 is properly adjusted, the rolling efficiency of the resistance slip sheet can be recovered when the resistance change of the fixed roller 3 and the rotating roller 4, and the rolling efficiency of the rotating wheel 12 can be recovered, and the discharging material can be ensured;

when the position of the movable roller 4 needs to be adjusted, the hydraulic system control hydraulic cylinder 5 drives the movable roller 4 to be far away from the fixed roller 3, so that the gap between the fixed roller 3 and the fixed roller is enlarged, meanwhile, the hydraulic device 9 also drives the hydraulic rod 10 to drive the hopper 2 to move, the middle part of the lower trough 201 at the bottom of the hopper 2 corresponds to the gap between the fixed roller 3 and the movable roller 4 all the time, the rolling quality is better facilitated, and meanwhile, the materials accumulated at the top of the fixed roller 3 and the movable roller 4 are prevented from flowing to both sides to influence the conveying belt to collect the blanking.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cement grinds station and unites roller press, includes organism (1) and hopper (2), and hopper (2) are located organism (1) top, its characterized in that: feed inlet (101) have been seted up at the top of organism (1), the bottom of hopper (2) stretches into in feed inlet (101), discharge gate (102) have been seted up to the bottom of organism (1), the left end fixed mounting of organism (1) inside has fixed roll (3), the right side movable mounting that organism (1) inside is located fixed roll (3) has movable roll (4), organism (1) inside right-hand member lateral wall fixed mounting has pneumatic cylinder (5), the output of pneumatic cylinder (5) and the right side fixed connection of movable roll (4), organism (1) back mounted has first motor (6) of drive fixed roll (3) and movable roll (4), organism (1) right side inner wall fixed mounting has control box (7), scraper (8) are installed to organism (1) left side inner wall and scraper (8) right side wall symmetry, organism (1) right-hand member top fixed mounting has hydraulic means (9), the left side activity of hydraulic means (9) has cup jointed hydraulic stem (10), hydraulic stem (10) and hopper (2) right side fixed connection, organism (1) top surface and front fixed mounting have spacing (11).

2. The cement grinding station combination roller press of claim 1, wherein: silo (201) have been seted up down to the bottom of hopper (2), silo (201) top position movable mounting has runner (12) down inside being located of hopper (2), the back fixed mounting of hopper (2) has output and runner (12) fixed connection's second motor (15), hopper (2) inner chamber middle part fixed mounting has two dead levers (13), the outside cover of dead lever (13) is equipped with corrugated sleeve (14), open in the inner wall at hopper (2) back and be equipped with air cavity (202), slider (16) have been cup jointed in the bottom activity of air cavity (202), the top fixed mounting of slider (16) has sleeve (19), the roof fixed mounting of air cavity (202) has loop bar (18), the top activity of sleeve (19) is cup jointed inside loop bar (18).

3. The cement grinding station combination roller press of claim 2, wherein: a cam (17) is fixedly mounted on the outer ring of an output shaft of the second motor (15), the cam (17) is located under the sliding block (16), and the loop bar (18) and the sleeve (19) are sleeved in a sliding sealing mode through a piston.

4. The cement grinding station combination roller press of claim 1, wherein: a set of spout (401) has all been seted up at the middle part of fixed roller (3) and activity roller (4), resistance gleitbretter (20) have been cup jointed in the inside slip of spout (401), one end and spout (401) inner wall fixedly connected with reset spring (21) that resistance gleitbretter (20) are close to activity roller (4) axle center, the inner wall of spout (401) is equipped with the resistance strip and slides the laminating with resistance gleitbretter (20).

5. The cement grinding station combination roller press of claim 1, wherein: the hydraulic rod (10) and the hydraulic cylinder (5) are driven by a hydraulic system at the same time, and the moving distance of the hydraulic rod (10) is smaller than that of the hydraulic cylinder (5) when the hydraulic rod is driven.

6. The combined roller press of the cement grinding station as claimed in claim 2, wherein: the blanking groove (201) is formed in a bent mode, grooves are uniformly formed in the outer surface of the rotating wheel (12), and the opening size of each groove is larger than the top opening of the blanking groove (201).